【摘要】 伊东林场金矿位于小兴安岭-张广才岭岩浆弧,是近年来通过物探综合方法查证1∶50 000比例尺化探异常新发现的。这里以1∶20 000土壤地球化学测量表明,Au含量高,局部富集明显,为主要成矿元素,Au异常是金矿找矿的直接标志,As、Sb异常为间接找矿标志;通过物探特征及其异常特征分析,矿体显示于低阻、高极化背景下中高阻、中低极化特征。伊东林场金矿的发现,进一步证明了物化探综合方法是森林沼泽浅覆盖区金找矿的有效方法。更多还原

【Abstract】 The Yidonglinchang gold deposit is located in the magma arc of Xiaoxing’an Mountain and Zhangguangcai Mountain. It is a newly discovered gold deposit that has been verified by a comprehensive method of 1∶50000 scale physical and chemical exploration in recent years. Through statistical analysis of 1∶20000 soil measurements, we found that high Au content, significant local enrichmen and obvious local enrichment are the main metallogenic elements. The anomaly is the direct sign of gold prospecting. As and Sb anomalies can be used as indirect ore prospecting indicators. Through geophysical characteristics and abnormal features analysis, the orebody shows the characteristics of medium high resistance and medium low polarization under the background of low resistance and high polarization. The discovery of Yidonglinchang gold deposit further proves that integrated geophysical and geochemical prospecting is an effective method for gold prospecting in forest and swamp shallow overburden areas. The discovery of Yidonglinchang gold deposit further proves that integrated geophysical and geochemical prospecting is an effective method for gold prospecting in forest and swamp shallow overburden areas.更多还原